all: demo
	echo All up to date.

demo: demo.o vectrex.o
	cc -o demo demo.o vectrex.o -lSDL2

demo.o: demo.c vectrex.h
	cc -c demo.c -I.

vectrex.o: vectrex.c vectrex.h
	cc -c vectrex.c -I.

clean:
	rm -f demo.o vectrex.o demo